Home / 20,736,053.60-31,104,080.40-10,119,221.60

Finding the Fourth Proportional to 20,736,053.60, 31,104,080.40 and 10,119,221.60

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Solution

The fourth proportional to 20,736,053.60, 31,104,080.40 and 10,119,221.60 is: 15,178,832.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,053.60 : 31,104,080.40 = 10,119,221.60 : x
  2. Step 2: Convert to fraction form
    20,736,053.60/31,104,080.40 = 10,119,221.60/x
  3. Step 3: Cross multiply
    20,736,053.60x = 31,104,080.40 × 10,119,221.60
  4. Step 4: Simplify right side
    20,736,053.60x = 314,749,082,231,816.62
  5. Step 5: Solve for x
    x = 314,749,082,231,816.62/20,736,053.60
  6. Step 6: Final answer
    x = 15,178,832.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.